Die for glass-pressing machines.



J. H. GROTH.

DIE FOR GLASS PRESSING MACHINES.

APPLICATION FILED-OCT. 6. 1911.

1 ,290j738. Patented Jan. 7 1919.

Witnesses v Attorneys Inventor time JOHN H.

GROTH. OF BEAVER FALLS, PENNSYLVANIA.

"DIE FOR GLASS-PRESSING TMACHINES.

i ,esocss.

Specification of Letters Patent.

Eatented Jan. 7, 1919.

Application filed October 6, 1917. Serial No. 195,095.

tures extending thereinto, as, for example holders for out flowers.

()ne of the objects of the invention is to provide a die utilizing a pincarrying member which is movable relative to the main body of the die or plunger whereby, when the die is lifted out of the mold, the pins" will first be partly withdrawn so as to be freed from the glass after which the main plunger of the die will be lifted out of the mold. i

A further object is to provide a die-having means whereby the IHOVCIHQDt of the pins relative to the main plunger can be varied.

With the foregoing and other objects in view, which will appear as the description proceeds the invention resides in the com bination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

in said drawings 2- Figure l is a section through a mold hating the present ii'nprovemcnts combined therewith.

Fig. 2 a bottom plan view of the-male die or mold.

Referring to the figures by characters of reference A designates the fixed mold of a glass pressing machine and. is adapted to receive a plunger mold or die of novel form constituting the present invention.

This includes a stem 1. which is adapted to be attached in any manner desired, to the plunger of a glass pressing machine and is provided, at its lower end, with a circular flange 2. This lltUlQt? issecured upon the recessed upper face. of a disk 3, there be ng a plurality oi apertures for extending through the disk and. in which are rcmovably mounted pins 5 having heads 6 seated in the recess 7 in the disk. The flange 2 and stem 1 are adapted to bear upon the heads 6 and thus hold the pins 5 fixedly within the openings 4:. However should it be desired to re move the pins it becomes merely necessary to disconnect the flange 2 from the disk 3. The parts 2 and can be held together by means of screws or in any other desired manner.

The flange 2 and disk 3 are seated with- -ina circular recess 8 formed in the body portioh 9 of the die, this body portion being of any desired external contour and having openings 10 in the bottom thereof within which the pins 5 are slidably mounted. An annular seat 11 is formed within the plunger 9 close to the bottom and supports a spacing washer 12. A retaining ring 13 is detachably secured upon a seat 14 formed in the top portion of the plunger 9, this ring serving to limit the upward movement of the flange 2 relative to the plunger 9.

In using the die herein described the gather (l to be pressed is placed in the mold A'under a ring I) and the die is moved down into the mold. the disk 3 l'n'essing on the spacing ring or washer 12 so that the pins 5 will project downwardly from the bottom of the plunger 5) and into the gather G while the gather is being shaped by the mold and the plunger 9. The stem 1. is then pulled upwardly and this will result, first, in the upward movement of the pins 5 relative to the plunger 9 until the flange 2 comes against the ring 13 whereupon the plunger 9 will be lifted out of the mold A. Thus the pins are first loosened from the gather after which the plunger 9 is Withdrawn, thereby insuring a more perfect product than would be possible should the pins and the. plunger be started simultaneously in their upward movement.

By using rings or washers 12 of different thicknesses the amount of relative movement of the pins 5 and plunger 9 can be varied.

It is to be understood of course that the improvements herein described can be applied to any form of glass pressing machine.

It is also to be understood that articles of various shapes and sizes can be produced by means of dies embodying the present improvements but in every instance it is desirahle that the pins he sterlie upwardly before the removal of the plunger portion of the die,

What is claimed is 1 A die for glass pressing machines, in eluding a hellew body portion having an annular seat therein, there being apertures in the end of Hie body portion, a dish; mommed tlt'ei' liini'lzed sliding movement. Within the body portion, mid disk having- 'ieeessed time, pins removnhly e d in and extemfl ing hejencl (he dim and slieahle in the openings in the hail portion; said ends having howls sea-mil in the recess n. the disks, 21 stem projecting inte the i311 pew tien and secured in the disks, said sten'i (zontaei ing with the lKEBili-i 0i. pins to hold the heads against movement relative to lzhe disks and :1 relaainiiirg ring secured h the body "portion and around the m1 e ml everhaiiging the disk for limiting the i'hevement of the disk relative to the body oyivien.

A die for glass pressing machines, in-

eluding; a hellew hecly pertion having spew tures in one end and 'an annular seat a re 2 mining ring secured to ene end of the body portion and overhanging the space therein, a disk slidehly mounted within the body between the ennui-a r seat and the ring and having a plmiality of apertures there being 39 av recess-in one face oi. the dis-z, pins :ieiaehably seated in the apertures in 1-2 disk. and slu'lalile within hhe e l'lHlS in the holly pertiun, heads 01] the pins and eezii eri within the rec in zhe dish ant; a stem sslihihh; mounted in. the ring and seeurix'l to the. said engaging the l:

pi e against, movement lfifilh'h m ii 10 1'1esfim0ny that claim the fer oi W115 l have he mixed my presence of e witnesses.

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